I really love this plugin, especially the feature to edit the look of the poll via css. But it seems that on my site the vote button doesn't meet the theme standards (My theme has rounded buttons but the Yop Poll vote button doesn't).
Is there a way to overwrite the button look? It seems you use the class "yop_poll_vote_button", but I can't find the definition anywhere in your plugin files?
(Can't post a link to my site since it is still in development an in maintenance mode)